IFM BasicController CR0431, Programming Manual

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ifm Programming Manual BasicController relay CR0431 v03.03.00 05 / 2018
ifm function elements ifm function elements for the device CR0431
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CAN_ENABLE
7492
Unit type = function block (FB)
Unit is contained in the library ifm_RawCAN_NT_Vxxyyzz.LIB
Symbol in CODESYS:
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Description
7494
With CAN_ENABLE the CAN hardware is initialised. Without this call no other calls are possible in
RAW-CAN or they return an error.
In order to change the baud rate the following procedure is required:
► Maintain the function block on ENABLE=FALSE for the duration of one cycle.
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All protocols are reset.
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Re-initialisation of the CAN interface and the CAN protocols running on it. Any information
available for cyclical transmission is lost as well and must be newly created.
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At renewed ENABLE=TRUE, the new baud rate is adopted.
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Parameters of the inputs
7495
Parameter Data type Description
ENABLE BOOL := FALSE TRUE: enable CAN interface
FALSE: disable CAN interface
CHANNEL BYTE CAN interface (1...n) depending on the device
BAUDRATE WORD := 250 Baudrate [kbits/s]
permissible = 20, 50, 100, 125, 250, 500, 1000
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Parameters of the outputs
8530
Parameter Data type Description
RESULT BYTE feedback of the function block
(possible messages → following table)
Possible results for RESULT:
Value
dec | hex
Description
0 00 FB is inactive
1 01 FB execution completed without error
– data is valid
8 08 function block is active
9 09 CAN is not active
242 F2 Error: setting is not possible